Sony A7R IV now official: world's first mirrorless camera with a 61MP full-frame sensor
Sony A7R IV now official: world's first mirrorless camera with a 61MP full-frame sensor
Jul 16, 2019, 3:27pm UTC
https://www.techradar.com/news/sony-a7r-iv-now-official-worlds-first-mirrorless-camera-with-a-61mp-full-frame-sensor